Adjustable work support and gage for channeling-machines.



v A. H. PRENZEL. ADJUSTABLE WORK SUPPORT AND GAGE FOR 0H A.I\TI\TI-II III\TG; MACHINES.

APPLIUATION FILED MAY 4, 1910. D 9 5, 5 Patented July 26,1910,

2 BHEETB-SEEET 1.

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{MENTOR "TOR/IE Y 8 ruvrrnn s'rnrns PATENT orrrcn.

ADAM HENRY BB'ENZEL, F HALIFAX, PENNSYLVANIA.

ADJUSTABLE WORK SUPPORT AND GAGE FOR CHANNTELING-MACHINES.

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To dll whom it may concern:

Be it known that I, ADAM H. PRENZEL, a

- citizen of the United States, and a resident of Halifax, in the county of Dauphin and State of Pennsylvania'have invented certain new and useful Improvements in Adjustable Work Supports and Gages for Qhanneling-Machines, of which the follow-f mg/Iis a specification. g

1 y lnventlon relates to lmp'rovements in I means for supporting work to be channeled and for gaging the position at which the work is to be held, and it consists in the constructions, combinations and arrangements herein described and claimed. In the process of channeling shoes preparatory to sewing the upper to the sole, it

1s customary to run a channeling knife along the border of the sole, while at the same time making a recess on theouter edge of the sole, The needle for sewing the upper is passed through the shoulder formed by the recess and through the channeled,

portion, thus uniting the upper to the sole. After the upper is sewed to the sole the edge of the latter is burnished, or ironed, by means of an iron having athickness which just equals the width of the exposed ed e of the sole. The ordinary way to channe the sole is to raise or lower a supporting table and to clamp the same in osltion by means of a set screw, or other snnilar device. If the table is set too high the recess is made correspondingly deeper, and whenthe edge of the soleis burnished or ironed, the iron is liable to cut the upper. On the other hand, if the table should be set too low there will be a portion of the edge of thesole'which will not be ironed. Each time that the shoe has to be channeled, if the width of the sole varies from that ofthe previous one, the table has to be reset. As stated above, this is done ordinarily by guess or by trial until the proper height is secured.

An object of my invention is to provide an, adiustable work table for channel ng machine's by means of which the depth of the out can be accurately gaged through themediumof a device which will set the table at a predetermined height, thereby doing away wlth all danger of injury to the shoe, or of turning out im erfect work.

'A further 0 ject ofmy invention is to provide-a device of comparatively neling machines of the ordinary type, which Specification of Letters Patent.

I Application fil d May 4, 1910. Serial No. 559,310.

simple. construction which may be used with chan- Patented July 26, 1910.

. REISSUED has few parts and is to (get out of order.

consequently not liable ther objects'and advantages will appear in the following specification, and the novel features of the device will be particularly pointed out in the appended claims.

My invention is-illustrated in the accompanying drawings forming part of this application, in which similar reference characters lndlcate llkeparts 1n the several vrews,

figure I have not shown connection between the parts 1 and the parts 2 and 3,,but it will be understood that these latter parts are attached to the frame 1.

The frame portion 1 is provided with a bore 4, in which the sliding spindle 5, of the work support operates. The spindle has a threaded recess 6, at its lower end, arranged.

to receive a worm 7, as clearly shown in.

Fig-r4. The upper part of the spindle 5 has an ii'itegraltable 8, having a slidable plate 9, wit-hall adjustable stop 10. The means for adjusting this stop forms no part of the present invention, since such devices are old.

Pivotally supported at 11, on the main frame 1, is a swinging arm 12,410 the lower end of which is pivotally attached, at 13, a bell-crank lever 14. This lever is attached by means of a pull rod 15, to a foot lever 16, which is mounted upon a pivot, at 17. The upper end of the bell-crank lever is pivotallyconnected at 18, with a downwardly extending arm .19, of a collar 20, which surrounds the spindle 5. The bell-crank lever has a hooked end-14c which is connected by means of a spiral spring 21 to an arm 22 which projects from the main frame 1. This spring tends normally to hold the lower end of the lever in a raised posit-ion.

Secured to the under side of the collar 20 is abridge 23. The worm 7 terminates at this bridge, but the integral shaft. uponwhich the worm is made, projects through the bridge, as shown at 24. Upon the shaft 24, below the bridge, is secured a handle 25,

-secured a-latch member 28. V latch inember 28 is provided with a tooth 29 by means of a set screw 26. This handle bears an upright 27 to which is pivotally The end of the arranged to enter recesses 30 in an arc shaped gage member 31, which is secured to the collar 20 by means of the screws 32 openings in the collar 20, as shown in Fig. 5.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. In channeling a shoe, with asole of given thickness, the latch 28 is pressed downwardly to ward the handle 25, against the tension of the spring 36. The handle is then shifted until the tooth29 comes opposite the recess 30 of the gage 31 which corresponds to the thickness of the sole to be channeled. The movement of the handle to the right or left will turn the worm 7 which will shift the relative position of the spindle 5 with respect to the collar 20, the bridge 23 on the latter acting as an abutment against which the worm 7 bears for forcing the spindle up or down. The foot lever 16 is now depressed which will 'pull downwardly on the bellcrank lever 14, thereby causing the table to descend so as to permit the insertion of the sole between the plate 9 and the knives 2 and 3, the sole being pressed against the stop member 10. Now when the pressure on the foot lever is relieved the spring 21 will cause the table to rise until the collar 20 comes into engagement with the lower edge of the frame 1. The table will now be. at the proper height for channeling and for recessing the edge of the sole.

' It will be seenfrom the foregoing description, that I have provided a device by means of which the raising and lowering of the table is accomplished with the utmost accuracy. There is no need of spoiling the work in an endeavor to find a proper position for the work supporting table by guessing or estimating the height at which it is to be set. Moreover with soles of different thickness the table may be set so as to cut a groove of the same depth. In the ordinary method the table must be reset for soles of different thickness.

I claim:

1. In a work supporting table for channeling machines, a frame provided with a vertical bore, a table having a spindle arranged to slide in said bore and provided with a threaded recess at its lower end, a

worm disposed in said recess,-an abutment member adjustably secured to said frame and adapted to be engaged by said worm, a handle for turning said worm, a gage member, and a latch member pivotally mounted on said handle and adapted to engage said gage for locking said handle in position.

2. In a work supporting table for channeling machines, a frame provided with a vertical bore, a table having a spindle arranged to slide in said bore and provided with a threaded recess at its lower end, a worm disposed in said recess, a collar disposed on said spindle, a bridge carried by said collar and adapted to be engaged by said worm, meansfor suspending said collar from said frame, a handle for turning said worm, a gage member, and a latch member pivotally mounted on said handle and adapted to engage said dle in position.

3. In a work supporting table for channeling machines, a frame provided,with a vertical bore, a table having a spindle arranged to slide in said bore and provided with a threaded recess at its lower end, a worm disposed in said recess, a collar disposed onsaid spindle, a bridge carried by said collar and adapted to be engaged by said worm,tmeans for suspending said collar from said frame, and a spring for holding said collar in a normally raised position.

4. In a work supporting table for channeling machines, a frame provided with a vertical bore, a table having a spindle arranged to slide in said bore'and provided with a threaded recess at its lower end, a worm disposed in said recess, a handle for turning said worm, a gage member, and a latch member pivotally mounted on said handle and adapted to engage said gage for locking said handle in position.

5. In a work supporting table for channeling machines, a frame provided with a vertical bore, a table having a spindle arranged to slide in said bore and provided with a threaded recess at its lower end, a worm disposed in said recess, a collar movable With respect to said spindle and adapted to be engaged by said worm, a handle for moving said worm, an arc-shaped gage member provided with recesses secured to said collar, and a pivoted latch member having a tooth adapted to enter said recesses on said gage member for locking the handle in positlon.

6. In a work supporting table for channeling machines, a frame provided with a vertical bore, a-table having a spindle arranged to slide in said bore and provided with a threaded recess at its lower end, a worm disposed in said recess, a collar disposedon said s indle and movable with respect thereto, a ridge carried by said collar and adapted to'engage the lower end of gage for locking said hansesame a said Worm, a handle secured to the worm shaft, an arc-shaped gage member secured to said collar and provided with indicating characters and registering recesses, a latch member pivotally mounted on said handle and having a tootln arranged to engage in said recesses, a swinging arm pivotally secured to said frame, a bell-crank lever car-- 

